Self-ballasted lamp and lighting equipment

Abstract

A base body having a base body portion and a plurality of heat radiating fins disposed on the circumference of the base body portion is provided. On one end side of the base body, a light-emitting module having semiconductor light-emitting elements, and a globe that covers the light-emitting module are provided. A cap is provided on the other end side of the base boy. A lighting circuit is housed between the base body and the cap. The lamp total length from the globe to the cap is 70 to 120 mm, and the area of a surface of the base body which is exposed to the outside per 1 W of power charged to the light-emitting module is 20.5 to 24.4 cm 2 /W.

1. A self-ballasted lamp comprising:
 a light-emitting module having a light-emitting portion in which a plurality of semiconductor light-emitting elements are mounted on one face of a substrate; 
 a base body which has a base body portion and a plurality of heat radiating fins provided on the circumference of the base body portion and that the light-emitting module is thermally-conductively brought into contact with one end side of the base body portion; 
 a globe which is provided on one end side of the base body so as to cover the light-emitting module; 
 a cap provided on the other end side of the base body; and 
 a lighting circuit housed between the base body and the cap, wherein 
 the lamp total length from the globe to the cap is 70 to 120 mm, and the area of a surface the base body which is exposed to the outside per 1 W of power charged to the light-emitting module is 20.5 to 24.4 cm 2 /W. 
 
     
     
       2. The self-ballasted lamp according to  claim 1 , wherein
 the plurality of heat radiating fins extend along a center axis of the base body and are radially formed outward from the center axis of the base body, and the interval between the heat radiating fins is 7 to 10 mm. 
 
     
     
       3. The self-ballasted lamp according to  claim 1 , wherein
 the light-emitting module is arranged at a position where the center of the light-emitting portion is farthest from an inner face of the globe. 
 
     
     
       4. The self-ballasted lamp according to  claim 1 , wherein,
 on one face of the substrate of the light-emitting module, 
 wiring patterns constituting a route for supplying power to the semiconductor light-emitting elements; electrode pads for connectors electrically connected to the wiring patterns; and connector fixing pads which are arranged farther than the electrode pads from the semiconductor light-emitting elements and electrically insulated from the semiconductor light-emitting element are formed, and 
 a connector is mounted which has terminal portions soldered and conducted to the electrode pads and terminal portions for fixation soldered to the connector fixing pads, and is connected to the lighting circuit via wires. 
 
     
     
       5. Lighting equipment comprising:
 an equipment body having a socket; and 
 the self-ballasted lamp according to  claim 1  attached to the socket of the equipment body. 
 
     
     
       6. A self-ballasted lamp comprising:
 a light-emitting module having a light-emitting portion in which a plurality of semiconductor light-emitting elements are mounted on one face of a substrate; 
 a base body which has a base body portion and a plurality of heat radiating fins and that the light-emitting module is thermally-conductively brought into contact with one end side of the base body portion: 
 a globe which is provided on one end side of the base body so as to cover the light- emitting module; 
 a cap provided on the other end side of the base body; and 
 a lighting circuit housed between the base body and the cap, wherein 
 in the base body, a solid portion is formed on one end side of the base body portion, and a plurality of heat radiating fins are formed integrally on a circumference of the base body portion including the solid portion. 
 the light-emitting portion of the light-emitting module is positioned within a region of one end side of the base body portion, and the lamp total length from the globe to the cap is 70 to 120mm, and the area of a surface the base body which is exposed to the outside per 1 W of power charged to the light-emitting module is 20.5 to 24.4 cm  2 /W. 
 
     
     
       7. The self-ballasted lamp according to  claim 6 , wherein the plurality of heat radiating fins extend along a center axis of the base body and are radially formed outward from the center axis of the base body, and the interval between the heat radiating fins is 7 to 10mm. 
     
     
       8. The self-ballasted lamp according to  claim 6 , wherein the light-emitting module is arranged at a position where the center of the light-emitting portion is farthest from an inner face of the globe. 
     
     
       9. The self-ballasted lamp according to  claim 6 , wherein, on one face of the substrate of the light-emitting module, wiring patterns constituting a route for supplying power to the semiconductor light-emitting elements; electrode pads for connectors electrically connected to the wiring patterns; and connector fixing pads which are arranged farther than the electrode pads from the semiconductor light-emitting elements and electrically insulated from the semiconductor light-emitting element are formed, and
 a connector is mounted which has terminal portions soldered and conducted to the electrode pads and terminal portions for fixation soldered to the connector fixing pads, and is connected to the lighting circuit via wires. 
 
     
     
       10. Lighting equipment comprising:
 an equipment body having a socket; and 
 the self-ballasted lamp according to  claim 6  attached to the socket of the equipment body.